Polynesian rat vs Rivero's Cochran Frog

Rattus exulans compared with Cochranella riveroi

Key Differences

• Polynesian rat is Least Concern while Rivero's Cochran Frog is Vulnerable.

Taxonomic Classification

Rank	Polynesian rat	Rivero's Cochran Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Anura (Frogs & Toads)
Family	Muridae (Mice & Rats)	Centrolenidae
Genus	Rattus	Cochranella
Species	Rattus exulans	Cochranella riveroi

Evolutionary Relationship

Polynesian rat and Rivero's Cochran Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Polynesian rat

LC — Least Concern

Rivero's Cochran Frog

VU — Vulnerable

Physical Characteristics

Attribute	Polynesian rat	Rivero's Cochran Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).

Rivero's Cochran Frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.